analyze-sessions

analyze-sessions is a skill for Claude Code, Codex from dotnet/maui. It costs 181 tokens per session (3,435 once invoked), scanned A, original, MIT.

A local tool that examines your Copilot CLI session logs and finds repeated ways agents waste effort or fail, then suggests repository changes and tests to prevent those problems.

In plain words
What is it for?
Use it to review recent .NET MAUI agent sessions, find recurring failure patterns, reduce expensive runs, and create checks that catch those failures. It is not for reviewing one pull request or investigating a build failure.
Why use it?
It turns scattered session history into specific improvement work without sending transcripts to outside services.

Skill for Claude CodeCodex

About the project

.NET MAUI is a C# and XAML framework for building native mobile and desktop applications from one shared codebase. Developers use it to create apps for Android, iOS, iPadOS, macOS, and Windows. The catalogue entries provide skills, instructions, and agents for working with .NET MAUI.

dotnet/maui · 23,319 stars · on GitHub

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/dotnet/maui/analyze-sessions
Any agent
npx skills add dotnet/maui --skill analyze-sessions
Clone the repo
git clone --depth 1 https://github.com/dotnet/maui

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for analyze-sessions

README.md
[![agentmods](https://agentmods.dev/badge/skills/dotnet/maui/analyze-sessions.svg)](https://agentmods.dev/skills/dotnet/maui/analyze-sessions)
Your own site
<a href="https://agentmods.dev/skills/dotnet/maui/analyze-sessions"><img src="https://agentmods.dev/badge/skills/dotnet/maui/analyze-sessions.svg" alt="Measured on agentmods" height="20"></a>
Per session 181 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,435 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00181 $0.03435
Opus 5 $0.00090 $0.01717
Sonnet 5 $0.00036 $0.00687
Haiku 4.5 $0.00018 $0.00344

Measured 5d ago against content hash c7b1bbd7e78f, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

analyze-sessions scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/Get-SessionAnalysis.ps1), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.github/skills/analyze-sessions/SKILL.md · 285 lines

How it starts

The opening of the file, as written. The whole thing — 285 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Analyze Sessions

Mines your local Copilot CLI session logs to find where agents waste effort or fail, then turns those findings into concrete repo edits + regression evals. It automates — for the whole fleet of your local sessions — a manual select → extract → judge → improve loop and the guard-eval mechanism shipped in PR #36002.

Trigger phrases: "analyze my recent maui sessions for agent improvements", "what's making my Copilot runs expensive / fail", "find recurring failure modes in my sessions", "turn my session failures into guard evals".

Do NOT use for: reviewing a single PR (use pr-review), running tests, investigating CI failures (use azdo-build-investigator), or any informational question — answer those directly.

Privacy contract (non-negotiable): This skill is local-only. It reads ~/.copilot/... and writes a redacted report into your session workspace. It NEVER opens a gist, NEVER POSTs a transcript, and NEVER ships session data to a third-party endpoint. The LLM-judge step runs inside your own Copilot session (your auth, your quota). Any cross-machine sharing is explicit, manual, opt-in — see Privacy & safety.

Architecture — one engine, two front doors

A deterministic PowerShell shared core does the heavy, reproducible work (select → extract → score → digest + redact). The judgment work (tag → cluster → propose → emit-eval) is done by you, the agent, reading the core's redacted output — no third-party endpoint is involved.

                  ┌──────────────────────────────────────────────┐
  local front door │  scripts/Get-SessionAnalysis.ps1 (NO LLM)    │
  -Repository/-Last│   select → extract → score → digest → redact │
  -SessionId  ─────►│   • dotnet-replay --summary --json (primary)│
                   │   • thin raw events.jsonl scan (supplemental)│
  CI front door    │   emits: session-analysis.md + .json contract│
  -EventsDir   ────►│                                              │
  -EventsPath      └───────────────────┬──────────────────────────┘
                                       │ redacted digests + ranking
                                       ▼
                   ┌──────────────────────────────────────────────┐
   agent, in your   │  judge → cluster → propose → emit-eval        │
   own session ─────►│   (rubric tagging, learn-from-pr taxonomy,   │
                   │    vally guard-eval per recurring mode)       │
                   └──────────────────────────────────────────────┘

Read the full file on GitHub · 285 lines

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 5d ago First seen · 285 lines · 181 tokens per session scan A c7b1bbd7e78f

Subscribe to this mod's changes

analyze-sessions is a skill published in the GitHub repository dotnet/maui (23,319 stars, last pushed today), licensed MIT. It adds 181 tokens to every session and 3,435 once invoked, about $0.0009 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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